Extracts Retail; Extracts Wholesale; Operations; Outages Retail; Outages Wholesale

Fri, Jan 08, 2021 02:40 PM

M-B010821-01 Planned system maintenance with impacted services


DATE: January 8, 2021

NOTICE TYPE: M-B010821-01 Outage - Retail/Wholesale

SHORT DESCRIPTION: Planned system maintenance with impacted services

INTENDED AUDIENCE: All Market Participants

DAYS AFFECTED: January 19, 2021 15:05 – 18:00

LONG DESCRIPTION: ERCOT will be performing planned system maintenance of Energy and Market Management systems (EMS, MMS and EIN) databases on January 19, 2021 during a maintenance window of 15:05 – 18:00.

During the maintenance period on January 19, 2021, Market Participants will experience an outage on the following services from 16:20 until 16:40:

  • MMS – Security-Constrained Economic Dispatch (SCED)/Look Ahead SCED applications may be unavailable for 3 SCED intervals during the 16:20 - 16:40 time frame.
  • Base Points from SCED may not be created for 3 SCED intervals during 16:20 - 16:40 time frame. During this period, Qualified Scheduling Entities (QSEs) with Resources may be required to follow Emergency Base Points from ERCOT Load Frequency Control.
  • Market submissions and requests via Web Services, Market Manager and Outage Scheduler.
  • Report publishing to the ERCOT Market Information System (MIS)
  • Downloading of extracts and reports from MIS and WebServices.
  • ERCOT.com Dashboards and displays will not be populated.
  • The following reports may be unavailable:
    • SCED and RTD Reports
    • NSA Active and Inactive Constraint Reports
    • State Estimator Reports
    • NSA Active and Inactive Constraint Reports
    • Real-Time Dynamic Rating Data Reports
    • Wind Power Production – 5-minute Averaged Actual values
    • Solar Power Production – 5-minute Averaged Actual values

Note that start and completion times of this maintenance may be delayed depending on system conditions at that time. A Hotline call to Market Participants will be executed prior to and following completion of the maintenance.

ADDITIONAL INFORMATION: Note that the Market Information System (MIS) and Current Day Reports (CDR) system will be impacted. Reports will be rerun and reposted as applicable. ERCOT.com dashboards and displays will not be populated with data during this timeframe.

CONTACT: If you have any questions, please contact your ERCOT Account Manager. You may also call the general ERCOT Client Services phone number at (512) 248-3900 or contact ERCOT Client Services via email at ClientServices@ercot.com.

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dg/mm